However, Galileo's telescopes suffered from high chromatic aberration, which is what happens when a curved lens breaks up light like a prism. (Gamers may recognize RGB chromatic aberration from ...

When Italian astronomer Galileo Galilei heard rumors of the first practical telescope at the beginning of the 17th century, he was quick to craft his own version and turn it toward the heavens.

The Kepler Space Telescope, named for astronomer Johannes Kepler, was NASA's first exoplanet hunting telescope. It launched on March 6, 2009, with the goal of observing more than 100,000 stars in ...

However, Galileo's telescopes suffered from high chromatic aberration, which is what happens when a curved lens breaks up light like a prism. (Gamers may recognize RGB chromatic aberration from ...

See how telescopes capture the cosmos. ExtremeTech explains the science behind lenses and space exploration. Start exploring the universe with us.